Cisco IOS Software DHCP Server remember Functionality Vulnerability

An issue in the DHCP server code of Cisco IOS Software could allow an unauthenticated, adjacent attacker to cause the device to reload. The issue is due to the remember functionality of the DHCP server. An attacker could exploit this issue by obtaining a lease and then releasing it. An exploit...

Cisco IOS Software DHCP Denial of Service Vulnerability (cisco-sa-20130925-dhcp)

A vulnerability exists in the DHCP implementation of Cisco IOS Software that could allow an unauthenticated, remote attacker to cause a denial of service DoS condition. The vulnerability occurs during the parsing of crafted DHCP packets. An attacker could exploit this vulnerability by sending...

Cisco IOS XE Software DHCP Denial of Service Vulnerability (cisco-sa-20130925-dhcp)

A vulnerability in the DHCP implementation of Cisco IOS XE Software allows an unauthenticated, remote attacker to cause a denial of service DoS condition. The vulnerability occurs during the parsing of crafted DHCP packets. An attacker can exploit this vulnerability by sending crafted DHCP packet...

CVE-2013-5475

Cisco IOS 12.2 through 12.4 and 15.0 through 15.3, and IOS XE 2.1 through 3.9, allows remote attackers to cause a denial of service device reload via crafted DHCP packets that are processed locally by a 1 server or 2 relay agent, aka Bug ID CSCug31561...

Code injection

Cisco IOS 12.2 through 12.4 and 15.0 through 15.3, and IOS XE 2.1 through 3.9, allows remote attackers to cause a denial of service device reload via crafted DHCP packets that are processed locally by a 1 server or 2 relay agent, aka Bug ID CSCug31561...

CVE-2013-5475

Cisco IOS/IOS XE DHCP Denial of Service (CVE-2013-5475): Affects Cisco IOS 12.2–12.4 and 15.0–15.3, and IOS XE 2.1–3.9. Vulnerability arises during parsing of crafted DHCP packets processed by the DHCP server or DHCP relay, potentially triggering a device reload. Remediation: Cisco (and Red Hat/N...

CVE-2013-5475

Cisco IOS 12.2 through 12.4 and 15.0 through 15.3, and IOS XE 2.1 through 3.9, allows remote attackers to cause a denial of service device reload via crafted DHCP packets that are processed locally by a 1 server or 2 relay agent, aka Bug ID CSCug31561...

GLSA-201309-21 : klibc: Command Injection

The remote host is affected by the vulnerability described in GLSA-201309-21 klibc: Command Injection The ipconfig utility in klibc writes DHCP options to /tmp/net-$DEVICE.conf, and this file is later sourced by other scripts to get defined variables. The options written to this file are not...

Cisco IOS Update Patches Eight Vulnerabilities

Telecommunications company Cisco this week is warning customers and those running their software of eight separate vulnerabilities it has patched in its internetwork operating system IOS infrastructure product. Cisco’s Product Security Incident Response Team PSIRT released the advisories yesterda...

klibc: Command Injection

Background klibc is a minimalistic libc used for making an initramfs. Description The ipconfig utility in klibc writes DHCP options to /tmp/net-$DEVICE.conf, and this file is later sourced by other scripts to get defined variables. The options written to this file are not properly escaped. Impact...

Cisco IOS Software DHCP Denial of Service Vulnerability

A vulnerability in the DHCP implementation of Cisco IOS Software and Cisco IOS XE Software could allow an unauthenticated, remote attacker to cause a denial of service DoS condition. The vulnerability occurs during the parsing of crafted DHCP packets. An attacker could exploit this vulnerability ...

SuSE 11.2 Security Update : Samba (SAT Patch Number 8170)

The Samba server suite received a security update to fix a denial of service problem in integer wrap protection. CVE-2013-4124. Additionally, the following stability fixes are included in this update : - Do not restart the smbfs service on pre-11.3 systems during dhcp lease renewal when the IP...

Amazon Linux AMI : dhcp (ALAS-2013-157)

A flaw was found in the way the dhcpd daemon handled the expiration time of IPv6 leases. If dhcpd's configuration was changed to reduce the default IPv6 lease time, lease renewal requests for previously assigned leases could cause dhcpd to crash. CVE-2012-3955 C Tenable Network Security, Inc. The...

Amazon Linux AMI : dhcp (ALAS-2012-31)

A denial of service flaw was found in the way the dhcpd daemon handled DHCP request packets when regular expression matching was used in '/etc/dhcp/dhcpd.conf'. A remote attacker could use this flaw to crash dhcpd. CVE-2011-4539 C Tenable Network Security, Inc. The descriptive text and package...

Amazon Linux AMI : busybox (ALAS-2012-103)

A buffer underflow flaw was found in the way the uncompress utility of BusyBox expanded certain archive files compressed using Lempel-Ziv compression. If a user were tricked into expanding a specially crafted archive file with uncompress, it could cause BusyBox to crash or, potentially, execute...

Amazon Linux AMI : dhcp (ALAS-2012-115)

A denial of service flaw was found in the way the dhcpd daemon handled zero-length client identifiers. A remote attacker could use this flaw to send a specially crafted request to dhcpd, possibly causing it to enter an infinite loop and consume an excessive amount of CPU time. CVE-2012-3571 Two...

[Yersinia v0.7.3] The network protocols assessment tool

Yersinia is a network tool designed to take advantage of some weakeness in different network protocols. It pretends to be a solid framework for analyzing and testing the deployed networks and systems. Currently, there are some network protocols implemented, but others are coming tell us which one...

Oracle Linux 6 : dhcp (ELSA-2011-1819)

The remote Oracle Linux 6 host has packages installed that are affected by a vulnerability as referenced in the ELSA-2011-1819 advisory. 12:4.1.1-25.P1.1 - DoS due to processing certain regular expressions CVE-2011-4539, 765682 Tenable has extracted the preceding description block directly from t...

Oracle Linux 6 : dhcp (ELSA-2011-0256)

The remote Oracle Linux 6 host has packages installed that are affected by a vulnerability as referenced in the ELSA-2011-0256 advisory. 12:4.1.1-12.P1.2 - CVE-2011-0413: Unexpected abort caused by a DHCPv6 decline message 672994 Tenable has extracted the preceding description block directly from...

Oracle Linux 4 : dhcp (ELSA-2009-1136)

From Red Hat Security Advisory 2009:1136 : Updated dhcp packages that fix a security issue are now available for Red Hat Enterprise Linux 4 and 4.7 Extended Update Support. This update has been rated as having critical security impact by the Red Hat Security Response Team. The Dynamic Host...